Wheel-guard for sawmill-carriages.



W. T. GAMPEN.

WHEEL GUARD FOR SAWMILL GARRIAGES,

APPLICATION FILED JUNE 4, 1912.

1,074,1 61 I v Patented Sept. 30, 1913.

I Z; 2 m -25 6 UNITED STATES "PATENT ornron.

WILLIAM 'I. CAMPEN, OF SOUTH CREEK, NORTH CAROLINA.

WHEEL/GUARD non sAwi/rrLL-ohRRIAeEs.

To all whom it may concern: 7

Be it known that I, WILLIAM T. CAMPEN, citizen of the United States, residing at South Creek, in thecounty of Beaufort and State of North Carolina, have inventedcertain new and useful Improvements in Wheel-Guards for Sawmill-Carriages, of which the followingis a specification.

This invention relates to wheel guards for sawmill carriages, and has for its object the provision of a device of simpleconstruction whereby all sawdust or other refuse which 'tends'to lodge upon the track rail and accumulate thereon so as to obstruct'thecarriageand cause the same to travel in an uneven {jolting manner will be effectually removed from the rail.

The invention also seeksto provide a de:- vice of simple and economical .COIlStIllCtlOIl, in which the parts subjected to wear may be easily renewed and by which the wheel will be held in its upright position andprevented from rocking upon the track rail.

Other incidental objects will appear as the description of the invention proceeds, and

. the invention consists in certain novel fealongitudinal section, and illustrating the opbeing removed.

. vided with a journal 2 on which a wheel 3 v is mounted, said wheelrunning upon a track tures which will be particularly pointed out in the claims at the end of the description.

In the annexed drawings: Figure 1 is a View showing my improved wheel guard in erative position 01613116 same relative to the track rail and the wheel. Fig. 2 is a detail elevationof one member of the guard. Fig. 3 is a plan view of the guard. Fig. at is a detail perspective view of'one of the wear blocks. Fig. 5 is a detailed bottom plan view of oneend In the drawings, for illustrative purposes, I have indicated at 1 the lower portion of an ordinary sawmill carriage pro;

raile.

The wheel guard consists of twolwrought iron sections 5 having 'theirendsiinclined to formor approximate plow points 6. Each section is provided on its inner face, adjacent its end, with an inclined rib 7, and

; remote from saidrib is reduced-to provide Specification of Letters Patent.

.track rail. Between the opposed faces of the sections,

of the guard, the weareplate Patented Sept. 30, 1913.

Application filed June 4, 1912. Serial no. 701,644.

I3,'and a segmental enlargement or offset 14c is provided on the inner face of the section immediately below the said recess, thereby presenting the curved shoulder 15 which is adaptedto engage over the rim of the wheel, so that, when the two sections are brought together'and engage opposite faces of the wheel, the latter will be maintained in its .upright position. and held against lateral swaying, so that it will not rock upon the at the ends thereof, I fit the wear blocks 16 which are so formed as to present shoes 17 adapted to ride upon the rails 4L and having their outer ends 18 shaped to conform to the plowpoints 6:.ofthe sections. The inner ends. of the shoesl? are disposed at a right angle to their sides, as shown at 19, so as to it squarely against the stops 12, whichstops receive the thrust of the shoes during their travel and hold them in place.

A standard or body portion 20 rises centrally from the shoe 17 and is disposed longitudinally; of the shoe, so as to fit between theends of the sections 5, the front edge of the said bodyportion or standard being disposed inwardly from the extreme front end 18.0f the; shoe, so that the end of the shoe may project'under the ends of the sections and the ribs 7 thereon and be thereby held against the tops of the track rails, as clearly shown'in Fig. 1'. The said standard or body portion is of such height as to extend to the top of the sections 5, and its upper end is so disposed as to lie flush with the surfaces of U the upper edges of the sect-ions, as will be readily understood. The front edge of the 'st'andard'or body portionis beveled so'as to fit against the inner beveled faces of the ribs 7, and the lower portion of the rear edge of said body portion or standard rests against the vertical shoulders or ribs 10 of the sections 5.

Inclined ribs or offsets 21 are formed at the upper rear portions of the standard 20, and these inclined ribs or lugs rest against the inclined shoulders 8 of the sections 5, as shown most clearly in Fig. 3. The said inclined lugs or ribs 21 together constitute a shoe or wearing face 22 to be engaged by-the wheel, the lower end of which projects rearwardly beyond the standard or body port-ion and rests upon the ledge 9, as shown most clearly in Fig. 1. Alined openings 23 and 24 are formed through the sections 5 and the wear blocks to receive securing bolts 25 by which the sections are held together and the wear blocks secured firmly in position between the sections.

The wheel guards heretofore most commonly used were subjected to considerable wear on their inner faces from the sides of the wheel, and the opposed faces tended to wear unevenly, so that the wheel would sway or tilt laterally and rock upon the track rail, so that the carriage would be oscillated and the saw would produce an uneven out. My construction overcomes these disadvantages, inasmuch as the segmental projections on the inner opposed faces of the guard sections engage the wheel over the rim of the same, so as to hold the wheel to the rail and prevent the rocking of the same. As the wheel is engaged equally upon its opposite sides, the wear will be even and consequently the life of the wheel and the guard both appreciably prolonged.

The face of the wheel being in contact with the faces of the wear blocks 16, will act thereon to cause the guard to move in the direction of movement of the carriage, and as the face engaged by the wheel is integral with the face running upon the track, the movement will be even and steady and all jolting of the carriage will be overcome. The travel of the guard over the rail effectually divides and throws to the sides any material tending to accumulate thereon, so that the wheel will always have a clean tread upon which to travel.

'The construction of the wear block devised by me effectually holds the same in its place and provides abutments so as to resist any tendency of the block to oscillate in any direction. 'Should'th'e wear block become unfit for further use through long continued wear, it is necessary merely to loosen the securing bolts and substitute a new block, which operation will require but a few minutes time.

The construction of my device is exceedjacent their ends on their lower edges with V transverse stops against which the inner ends of said shoes abut;

2. A guard for sawmill carriage wheels comprising mating sections provided. on their inner opposed faces with inclined abuttin ribs at their ends and inwardly from sai' ribs with inclined shoulders diverging downwardly from the ribs and having transverse stops on their lower edges, and wear blocks secured between the ends of the sections and having shoes abutting the-said transverse stops and extending therefrom under the lower edges of the sections to the outer ends thereof, said blocks bearing against the inclined ribs and having lateral lugs resting upon the said inclined shoulders.

3. A wear blockfor sawmill wheel guards the guard, a standard rising from the shoe .90 comprising a shoe adapted to extend under and adapted to fit within the guard, and an 7 inclined wear plate at the upper rear portion of said standard and projecting laterally be yond the sides of the same to be engaged by the periphery of the sawmill carriage Wheel.

4. A wear block for sawmill wheel guards comprising a shoe adapted to extend under the guard, a standard rising centrally from the shoe and disposed longitudinally of the same, the lower portion of one end edge of the standard being vertical and flush with the corresponding end edge of V the shoe and the opposite end edge of the standard being disposed short of the adjacent end of the shoe and inclined upwardly away therefrom, and lateral lugs on the sides of the standard adjacent the vertical endedge portion of the same and extending upwardly and inwardly from said portion toward the inclined edge of the standard.

5; A guard for sawmill carriage wheels comprising mating sections provided at their ends on; their inner opposed faces with outwardly and downwardly inclined abut-' ing in transverse stops below and extending under the lower edges of thesectionsywear fblocks comprising standards fittedbetween the sections and against said ribs and said sto s, and means for securing the sections 10 vertical shoulders, lateral inclined lugs at an the wear blocks together.

the upper rear corners of the standards fit- In testimony whereof I aflix my signature ting against said inclined shoulders and havin presence of two witnesses.

ing t eir lower ends resting on said transverse ledges, and shoes rigid with the lower WILLIAM CAMPEN' ends of the standards extending under the Witnesses: J lower edges of the sections and having their W. E. Woon, R f lower ends abutting the said transverse J. B. CAMPEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner oi ratents,

Washington, D. 0. 

